Antifriction end-thrust device.



'PATENTED JAN-13,1903.

s. s. BVELANDL ANTIFRIGTION END THRIIST DEVICE.

APPL IOATION FILED NOV 30 1901 no MODEL.

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' NlTE STATES PATENT OFFICE.

SAMUEL S. EVELAND, OF PHILADELPHIA, PENNSYLVANIA.

ANTlFRlCTION EN DJ-THRUST DEVICE.

SPECIFICATION forming part of Letters Patent No. 718,110, dated January13, 1903. Application filed November 301901. Serial No. 84,227. (Nomodel.)

separate use of balls and rollers and which.

characterize and distinguish them from each other. g

To the end stated the invention consists in the improvements hereinafterdescribed and claimed.

The nature, characteristic features, and

scope of the invention will be more clearly.

understood from the following description, taken in connection with theaccompanying drawings, forming a part hereof, and in which Figure l is asectional view of an endthrust device embodying features of theinvention and Fig. 2 is an elevational view'of a modification, parts ofthe rollers being broken away to more clearly disclose the construction.Fig. 3 is a side elevational View of the bearing, disclosing thearrangement of the rollers and sockets.

Referring to Fig; l, 1 indicates a ring, which has its periphery notchedor provided with outwardly-opening slots or sockets 2, adapted for thereception of balls and rollers. 3 indicates the rollers, whichthroughout their length are cylindrical and at their outer ends areprovided with concavities or sockets a for the reception of the balls 4.A band or ring 5 serves the purpose of a retaining device formaintaining the balls and rollers in proper position. As shown, the band5 may have a groove 19 to accommodate the balls, and the sockets 2 mayor may not have the auxiliary sockets 6 in the bottoms thereof to accommodate the inner ends of the rollers. 7 indicates similar coaxial ringsor washers with hardened inner faces, which when used afford rollingcontact to the protruding cylindrical faces of ,the rollers. Thecylindrical parts or faces of the rollers take up end or longitudinalthrust, and the balls act to relieve radial pressure.

- In the modified construction, Fig. 2, a plurality of balls androllersis shown. The rollers 3 are socketed at their ends, as in Fig. 1,to accommodate the interposed balls, there being also a ball in thebottom of the main or radial socket 2. The band 5 is provided withindividual sockets c to accommodate the outer balls.

It will be obvious to those skilled in the art to which the inventionappertains that modifications may be made in details without departingfrom the spirit and scope of the same. Hence I do not limit myself tothe precise construction and arrangement of parts hereinabove described,and illustrated in the accompanying drawings; but,

Having described the nature and objects of the invention, What I claimas new, and desire to secure by Letters Patent, is

1. A thrust bearing comprising a ring formed with a series of mainsockets extending from the outer edge or periphery of the ring inwardlyand which are open at their sides and have concave walls and auxiliarybottom sockets, cylindrical rollers confined in said main sockets andprotruding at the sides thereof, balls arranged endwise of the rollers,and a ring fitted to the periphery of said first-mentioned ring andacting to confine the balls and rollers, substantially as described.

2. A thrust bearing comprising a ring formed with a series of mainsockets extend ,ing from the outer edge or periphery of the ringinwardly and which are open at their sides and have concave walls andauxiliary bottom sockets, cylindrical rollers with concaved endsconfined in said main sockets and protruding at the sides thereof,ballsarranged in the concaved ends of the rollers, and a ring fitted to theperiphery of said first-mew tioned ring and acting to confine the ballsand rollers, substantially as described.

3. A thrust bearing comprising a ring formed with a series of mainsockets extending from the outer edge or periphery of the ring inwardlyand which are open at their sides and have concave Walls and auxiliarybottom sockets, cylindrical rollers with concaved ends confined in saidmain sockets and protruding at the sides thereof,balls arranged in theconcaved ends of the rollers, a ring fitted to the periphery of saidfirst-mentioned ring and acting to confine the balls and rollers, andcoaxial rings or Washers against which the protruding cylindrical facesof the rollers are afiorded rolling contact, substantially as described.

4. A thrust bearing comprising a ring formed with a series of mainsockets extending from the outer edge or periphery of the ring inwardlyand which are open at their sides and have concave walls and auxiliarybottom sockets, cylindrical rollers with concaved ends confined in saidmain sockets and protruding at the sides thereof,balls arranged in theconcaved ends of the rollers, and a ring fitted to the periphery of saidfirst-1n entioned ring and acting to confine the balls and rollers andhaving a groove or raceway for the balls, substantially as described.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

SAMUEL S. EVELAND.

Witnesses: Y

W. J JAoKsoN, JAs. A. RICHMOND.

